Olympus E-M10 metadata spam

Apparently Olympus has chosen to spam all my photos by adding a caption to all with their name. This, I have discovered, also occurred with other OM-D cameras, but I haven't found a way to turn it off in the camera. I can do it in Lightroom, but it's annoying (I search and replace with "Don't buy Olympus" just for fun; that goes on all the stuff I upload online that doesn't otherwise get captions. I suggest we all do that). I just we should just be grateful they don't impose a watermark on all the photos. What a cheesy company.